A quote from vitamin D council below and address for the article.
2010.01.27 What Vitamin D Means to Your Technology Profits The scientific consensus that has held sway for four decades regarding both exposure to the sun and vitamin D has collapsed. What has emerged in place of the old settled science is the knowledge that most people in America are seriously vitamin D deficient or insufficient. The same is true for Canada and Europe, and the implications are staggering.
Click below.
http://beforeitsnews.com/story/14/046/What_Vitamin_D_Means_to_Your_Technology_Profits.html